Lock



May 31, 1932.

J. GUTMANN, JR

LOCK

Filed June '7, 1929 FRONT 23? R E 2% 4 REAR \J 11 24 0' MLRMSE LOWERNEL RAISE INVENTOR .mm,

ATT R to closure, and inwhich Patented .May 31, 1932 G- can;

JOHN GUTMANN, JR., OF ST. ALBANS, NEW YORK, ASSIGNOR, BY ASSIGNMENTS,

T MOTOR JACK YORK V CORPORATION, OF NEW YORK, N. Y., A CORPORATION OF LOCK Application filed June 7,

This and other objects, which will appear 15as the description progresses, are accomplished by the novel construction, c0mbina tion; and arrangement of parts hereinafter fully described-and delineated in the drawings forming an essential part of this dis- Figure 1 is a plan view of a lock control plate as used witha form of the invention.

Figure 2 is a rear plan view of the same drawn to an enlarged scale andshowing the i operative mechanism.

Figure 3 is a top plan view of the same.

Figure 4 is a view similar to Fig. 2 but drawn to a diminished scale and showing a modified type of construction.

As shown in the drawings the device is mounted on a plate 10,'generally an oblong rectangle .in contour, having at its upper central portion an escutcheon 11 leading to boss '12 in which is fined a keyoperated'tumbler lock 13 of conventional type.

F iXed on the inner rotatable stem; of the lock is a spurpinion 14 meshed with a mating "gear 15 of four times its size, the gear being fixed on a spindle 16rotatably mounted in a boss 17 extending rearwardly of the plate 10. Adjacent the boss 12 and fixed on the spindle 16, outside the gear 15 is a cam 18 having two opposed symmetrical end portions.

A pair of spaced parallel shafts 19-20 are revolvably mounted in bosses 21-22, formed on the rear of the plate, through which the shafts extend, the shafts being provided with collars 23-24 and extending hand levers 25-26.

By. reference to Fig. 1 it may be seen that 1929. Serial No. 369,111.

the levers are arranged with respect to jacking devices disposed at the front and rear of a vehicle and the levers act as controls for raising and lowering the vehicle as indicated. The control means are actuated by rods 27-28 having their upper ends in hooked engagement with levers 29-30 provided with hubs fixed'rigidly on the respective shafts 19-20, and intermediate the hubs and ends of the bearing bosses are discs 31-32 secured to the shafts, these discs containing peripheral recesses 33-34 and 33-845.

Pivoted centrally between the shafts 19-20, on a pin 35 set in the plate 10, is a double ended lever 36, one of its ends terminating in a lug 37 adapted to engage in the recess 33 or 33 while its opposite end has an oppositely disposed lug 38 engageable in the corresponding recess '34 or 3e, both lugs engaging coincidently and by reason of the wedge shape engaging surfaces, eifectively preventing movement of the discs and consequently the shafts to which the discs are fastened. 7

The lever 36 is positioned in the path of the double cam 18 and drawn constantly against it by a tension spring 39 connecting the portion of the lever opposite its pivotal point with an eye 39' fixed on the plate 10, the end of the cam, upon being turned by the lock, pressing against the lever, opposing the spring and forcing the lever lugs into locking position with reference to the discs.

Due to the gearing interposed between the lock and cam, a key may be turned a full revolution so as to permit withdrawal, while the cam is turned through an angle of ninety degrees only in releasing or looking the discs.

In the modified form shown in Fig. 4 a slightly different arrangement is indicated by which similar results are attained.

A plate 10' has journalled in it a pair of shafts l9-20' to which are attached discs '31-32 provided with recesses in their between the levers, which are thus held in contact with a double ended cam 4-7 fixed on a s indle 48.

ecured on the spindle is a spur gear 49 meshing with a pinion secured on a lock stem in the manner before described and actuated in a like manner.

Instead of having the rods or actuating members 27-28 operate through lovers 29- 30 and with hand levers 2526, the rods or actuating members may be operated directly in which case they would be so disposed with relation to lever 36, or levers 4243, that the lugs 3738, or 404l, would engage recesses provided directly in the rods or actuating members.

Thus it will be seen that in either device the actuating members may be locked or unlocked simultaneously and by a single key operated lock. As the only parts accessible or visible are the manual operating means, it will be seen that the device can only be operated by a person provided with a proper key.

It will be further understood that the de vice is adapted to be used in many situations in which it is desired to control the movement of one or more actuating members in an effective manner.

One of these situations arises when the rods or actuating elements are connected to mechanism for raising or lowering acking devices mechanically operable through the instrumentality of the motor of an automobile. When the vehicle is parked it may be desirable to lower the jacking apparatus so as to raise the wheels of the vehicle oil the ground. By looking the rods or actuating elements when the jacking apparatus is in this position, at which time the levers 33'34, shown in the forms of my invention, disclosed in the drawings, are in a predetermined position opposite the lugs 3738, an effective means is provided. to prevent the vehicle from being stolen. When the jacks are in inoperative position it is desirous to lock the mechanism so as to prevent vibration of the parts. When the jacks are in inoperative or neutral position the recesses 33-34 assume a predetermined location opposite the lugs 37-38. g

The lugs 37 38 of lever 36 may be provided with reduced end portions adapted to be received. in corresponding orifices on the periphery of discs 3132 instead of in no tches suchas is shown. at 33 34. or 33 34 Although the improvements have been described with considerable detail and with respect to certain particular forms of the invention, it is not desired to be limited strictly to such details, since many changes and modifications may be made without departing from the spirit and scope of the appended claims.

Having thus described the invention,

what is claimed as new and sought to secure by Letters Patent, is

1. A locking device for shafts mounted for rotary movement, comprising a recessed disc fixed on each shaft, a lever having lugs to engage the disc, recesses simultaneously, a cam operable to press the lugs therein, and a key actuated lock to transmit motion to said cam.

2. The combination with a pair of parallel shafts, a plate through which said shafts extend, and manual means for rotating said shafts into different positions, of a disc on each shaft having recesses, locking means to engage in the recesses, a two-throw cam, a spring to urge said locking means against the cam, a key actuated lock having a stem, and geared connections between said stem and cam whereby to force the locking means into locking engagement within said recesses.

3. The combination with a pair of parallel shafts, a plate through which said shafts extend and manual means for rotating said shafts, of a disc on each shaft having recesses, locking means to engage in the recesses, a two-throw cam, a spring to urge said locking means against the cam, and key operated means to rotate the cam whereby to press said locking means into engagement within said recesses.

4. The combination with a pair of shafts,

a plate through which said shafts extend and manual means for rotating said shafts, of a disc on each shaft having engaging means, locking means to engage said engaging means, a two-throw cam, a spring to draw said locking means against the cam, and key operated means to rotate the cam whereby to press said locking means into engagement with said engaging means on the discs.

5. The combination with a pair of shafts and manual means for actuating said shafts, of engaging means on said shafts, locking means to engage said engaging means, a cam, means to urge said locking means against the cam, a key actuated lock. and means between said lock and cam whereby to force the looking means into locking engagement with said engaging means.

6. The combination with a pair of actuating members having engaging means, of locking means to engage said engaging means, a two-throw cam, a spring to draw said locking means against the cam, and key-operated locking engagement with 7 said engaging means.

8. The combination with a pair of actuating members and manual means for operating said members, of engaging means on said members, locking means to engage said engaging means, a cam, means to urge the locking means against said cam, a key-actuated lock, and means between said lock and said cam whereby torforce said locking means into locking engagement with said engaging means.

9, A locking device for shaftsmounted for rotary movement comprising a recessed plate fixed on each shaft, a lever adapted to engage the plates within the recesses simultaneously,

' means to transmit motion to the lever to cause signature.

JOHN GUTMANN, JR. 

